Tanzania has embarked on the exciting journey of developing its first National Action Plan (NAP) on Women, Peace and Security (WPS) and will soon be entering the drafting phase. In East and Southern Africa, Tanzania is among the few countries that will be developing its first-ever document inviting women to meaningfully participate in the peace process. Many countries in the region have developed NAPs and some have been successfully implementing theirs, gathering many years of lessons learned and diverse practices. The 2022 International Peace Day presented a unique opportunity to bring together professionals from East and Southern African countries, the Tanzanian government and civil society representatives to share lessons learned and best practices in NAP development, implementation, and reporting.